embryonic disc

noun

variants or embryonic disk

plural embryonic discs or embryonic disks

1

a

: blastodisc

b

: blastoderm

2

: the part of the inner cell mass of a blastocyst from which the embryo of a placental mammal develops

called also embryonic shield

Word History

First Known Use

1871, in the meaning defined at sense 1b

Medical Definition

embryonic disc

noun

variants or embryonic disk

1

a

: blastodisc

b

: blastoderm

2

: the part of the inner cell mass of a blastocyst from which the embryo of a placental mammal develops

called also embryonic shield